Hello. Thanks for all the helpful comments so far. A couple of clarifications to questions... The 32bit Mem-access I refered to was what lspci was showing: 01:0a.0 Ethernet controller: Intel Corporation: Unknown device 1004 (rev 02) Subsystem: Intel Corporation: Unknown device 1004 Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 20 Memory at fd020000 (32-bit, non-prefetchable) [size=128K] Memory at fd000000 (32-bit, non-prefetchable) [size=64K] Expansion ROM at <unassigned> [disabled] [size=64K] Capabilities: <available only to root> I used the e1000 driver which came with RedHat 7.1, which I assumed was the Becker driver mentioned on the lists, as well as one downloaded directly from Intel (which also had code available, and which I assumed was a slightly tuned e1000 driver -- it builds a new e1000.o). I haven't seen an intel-gige driver, but would be anxious to try that. To be honest I don't think I've seen that one floating around out there -- I'll have to dig around and try to find it. I'll try running single CPU to see what I get, as well as some of these suggested performance metrics. I may also try the kernel upgrade suggested (I'm running 2.4.2, so moving to 2.4.7 may be a step toward better performance) Thanks for all the feedback! I've got a good list of things to try now! I'll post results as requestsed. --Dave __________________________________________________ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html